Meet the Man
Behind FOURM 4.0
Founded by performance coach and optimization expert Deniz Duygulu, FOURM 4.0 was built for men who lead in life but need a system to help them lead themselves. As an IFBB Physique Pro & co-founder of 4Ever Young Anti-Aging, a national leader in the vitality and wellness space, Deniz brings over 20 years of experience helping men look, feel, and perform at their best.
With more than a decade of one-on-one personal training and online coaching, and another leading the growth of 4Ever Young’s national brand, Deniz has spent his career bridging the worlds of performance, vitality, and longevity. His approach combines data, human behavior, and no-BS accountability to help high-achieving men operate at their true capacity without burning out.
Working with Deniz has been a game changer. His guidance on nutrition, training structure, and evidence-based use of wellness protocols helped me improve my energy, body composition, and overall health. The clarity, support, and consistency he brings make the entire process feel achievable and sustainable.
DANNY F, 38
When I first met Deniz I was struggling with my weight, energy and motivation and frankly just thought that’s how life it’s supposed to be for a guy my age. I was wrong. I asked Deniz if he would work with me with my Hormone levels, diet and workouts and I can’t be more excited for the results I’ve experienced. One of the best decisions I’ve made.
doug s, 59
Working with Deniz completely changed my life. In just 18 months I lost over 100 pounds, quit smoking, and became the healthiest I’ve been in more than 20 years. He introduced me to the right peptides, TRT therapy, and a realistic approach to diet and training that finally worked. My bloodwork, cholesterol, sugar, and blood pressure are all normal now with zero medications. My energy, confidence, and sleep improved more than I ever thought possible. What sets Deniz apart is how much he cares. He always answered my texts and calls, checked in on me, and pushed me exactly when I needed it. I didn’t just transform my body, I transformed my life. I owe that to Deniz.
jon b, 40
What You Need to Know
Is This For Me?
If you’re a high-performing man 35+ ready to upgrade your body and mindset, yes.
Do I Need Bloodwork Before Joining?
No — we handle that as part of your onboarding process.
How Soon Will I See Results?
Most clients experience measurable improvement in 90 days.
What’s the difference between Prime and Prime+?
Prime gives you the structure — training, nutrition, accountability, and foundational guidance.
Prime+ adds full medical integration, including lab work, MD review, and concierge-level support.
Do I need access to a gym?
We’ll work with whatever you’ve got — a full gym, a hotel setup, or a set of dumbbells in your home garage. Your coach will tailor training to your environment.
Is this only for men over 35?
While most clients are 35+, we work with men of all ages who want to optimize performance, energy, and longevity.
Do you work with beginners?
Yes — as long as you’re committed. Every plan is personalized to your current level, schedule, and capacity.
How much time do I need to commit each week?
Most clients train 4–5 days per week and spend less than an hour a day executing their plan. Consistency beats perfection.
Do I have to do bloodwork for Prime+?
Yes. Comprehensive labs are included as part of your onboarding process.
What if I’m already on hormone therapy?
No problem. We’ll review your current protocol and integrate it into your plan for continuity and optimization.
What happens after I sign up?
You’ll complete your intake questionnaire, schedule your onboarding call, and start the analysis phase so we can build your personalized program.
What’s the length of the program?
We require a minimum 90-day commitment—that’s the amount of time needed to create real, measurable change.
I’m not a bodybuilder. Is this still for me?
Absolutely. We’re not here to turn you into a fitness influencer. This is performance coaching for real life, executive energy, resilient mindset, strong body, and sustainable health.
What if I travel often or have a demanding schedule?
Even better. FOURM 4.0 is built for your lifestyle — remote-friendly, highly personalized, and adaptable. You’ll receive protocols that travel with you.
How does medical oversight work?
Prime+ includes coordination with a licensed medical doctor for labs, peptides, and hormone optimization. You’ll get real clinical input, not just cookie-cutter plans.
JOIN the fourm 4.0 FAMILY
